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 A071340 a(n) = least positive r <= n such that the origin-centered circle of radius sqrt(r) touches A071339(n) lattice points. 1
 0, 1, 1, 5, 5, 25, 25, 25, 25, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 325, 325, 325, 325, 325, 325, 325, 325, 325, 325, 325, 325, 325, 325, 325, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105, 1105 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 LINKS Hugo Pfoertner, Illustration EXAMPLE a(4)=5 because the smallest circle to touch A071339(4)=8 points has radius sqrt(5). PROG (FORTRAN) See A071339. CROSSREFS Cf. A071339-A071347. Sequence in context: A256135 A227076 A223186 * A056451 A074872 A162962 Adjacent sequences:  A071337 A071338 A071339 * A071341 A071342 A071343 KEYWORD easy,nonn,changed AUTHOR Hugo Pfoertner, May 22 2002 EXTENSIONS Edited by Don Reble, Nov 06 2005 STATUS approved

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